package com.briup.ch06;
class Demo{
    private int num;
    public static int count;
    public Demo()
    {
        System.out.println("null");
    }
    //构造代码块
    {
        System.out.println("构造代码块0");
    }
    {
        System.out.println("构造代码块1");
    }
}
public class Test3 {
    public static void main(String[] args) {
        Demo d1=new Demo();
    }


}
